User manual
353 Administrator Settings 
35 
3.2.2 Alert Tones and Volume 
Video Call Alert Tone and Telephone Alert Tone 
To help distinguish between incoming video calls and ordinary telephone calls, it is recommended 
to use different ringing tones for video calls and telephone calls. 
Alert Volume 
You may change the volume level for the selected ringing tone. 
Key Sound 
 On 
There will be a sound indicator when pressing keys on the remote control. 
Off 
There will be no sound when pressing keys on the remote control. 










